Finding the Fourth Proportional to 9,722.18, 13,416.86 and 5,473.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,722.18 : 13,416.86 = 5,473.40 : x
2. Step 2: Convert to fraction form
   9,722.18/13,416.86 = 5,473.40/x
3. Step 3: Cross multiply
   9,722.18x = 13,416.86 × 5,473.40
4. Step 4: Simplify right side
   9,722.18x = 73,435,747.07
5. Step 5: Solve for x
   x = 73,435,747.07/9,722.18
6. Step 6: Final answer
   x = 7,553.43